The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ALPHABET INC CAP STK CL C COM 02079K107   30,260,275 341,038 SH   SOLE   82,285 0 258,753
ALPHABET INC. CL A COM 02079K305   299,982 3,400 SH   SOLE   0 0 3,400
AMAZON COM INC COM COM 023135106   26,704,704 317,913 SH   SOLE   68,654 0 249,259
AON PLC REGISTERED SHS CL A COM G0403H108   30,209,967 100,653 SH   SOLE   25,590 0 75,063
APPLE INC. COM 037833100   493,344 3,797 SH   SOLE   0 0 3,797
ATLASSIAN CORP CL A COM 049468101   2,529,463 19,657 SH   SOLE   4,973 0 14,684
BERKSHIRE HATHAWAY INC CL A COM 084670108   468,711 1 SH   SOLE   0 0 1
BERKSHIRE HATHAWAY INC CL B COM 084670702   308,900 1,000 SH   SOLE   0 0 1,000
COSTAR GROUP INC COM COM 22160N109   7,496,345 97,002 SH   SOLE   24,539 0 72,463
DATADOG INC COM 23804L103   4,623,828 62,909 SH   SOLE   15,645 0 47,264
FISERV COM 337738108   18,851,853 186,523 SH   SOLE   45,237 0 141,286
FLOOR & DECOR HLDGS INC CL A COM 339750101   6,314,143 90,681 SH   SOLE   22,203 0 68,478
MASTERCARD INC CL A COM 57636Q104   20,635,124 59,342 SH   SOLE   15,192 0 44,150
MICROSOFT CORP COM COM 594918104   28,929,482 120,630 SH   SOLE   29,717 0 90,913
NETFLIX INC COM COM 64110L106   4,907,711 16,643 SH   SOLE   4,143 0 12,500
VISA INC COM CL A COM 92826C839   25,386,212 122,190 SH   SOLE   31,137 0 91,053
SPDR BLOOMBERG 1-3 MONTH T-BIL TR UNIT 78468R663   6,585,108 71,992 SH   SOLE   71,992 0 0